| Sinful Deeds | |
| Type: | EP |
| Artist: | Crimson Lotus |
| Cover: | Crimson Lotus - Sinful Deeds (Front).jpg |
| Released: | 5 September 2005 |
| Recorded: | January 2005 – August 2005 |
| Genre: | Progressive metal |
| Length: | 31:13 |
| Prev Title: | Foreword |
| Prev Year: | 2004 |
| Next Title: | Bloodstained Heroes |
| Next Year: | 2006 |
Sinful Deeds is the second EP of the Finnish progressive metal band Crimson Lotus. It was released on 5 September 2005. Original album artwork created by Lydia C. Burris.
Guest musicians: Matti Auerkallio (vocals on tracks 1, 2 and 5), Susanna Syrjä (vocals on tracks 1, 3 and 4), Landis Lee Bender II (vocals on tracks 3 and 4), Hannu Leppänen (guitar chase solo on track 2), Laura Hagström (piano on track 4).